save project

snake.py

+import pygame
+from pygame import locals
+import random
+
+# 初始化pygame，为使用硬件做准备
+pygame.init()
+
+screen = pygame.display.set_mode((660, 480))
+FPSCLOCK = pygame.time.Clock()  
+
+background = pygame.image.load('bg.png')
+right = pygame.image.load('right.png')      
+food = pygame.image.load('apple.png')      
+body = pygame.image.load('body.png')        
+left = pygame.image.load('left.png')        
+up = pygame.image.load('up.png')           
+down = pygame.image.load('down.png')       
+x, y = 240, 120
+position = [(180, 90), (180, 120), (210, 120), (x, y)]
+apple_x = 360
+apple_y = 300
+
+setheading = "right"
+snake_head = right
+
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            # 接收到退出事件后退出程序
+            exit()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading != "left":
+                setheading = 'right'
+                snake_head = right
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = 'left'
+                snake_head = left
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = 'up'
+                snake_head = up
+            if event.key == locals.K_DOWN and setheading != "up":
+                setheading = 'down'
+                snake_head = down
+
+    if setheading == "right":
+        x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
+    if x == apple_x and y == apple_y:
+        num1 = random.randint(1,22)
+        num2 = random.randint(1,16)
+        apple_x = 30*num1-30 
+        apple_y = 30*num2-30
+    else:
+        position.pop(0)    
+    position.append((x, y))
+    screen.blit(background, (0, 0))
+    screen.blit(snake_head, position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])
+    screen.blit(food, (apple_x,apple_y))
+    pygame.display.update()
+    FPSCLOCK.tick(3)
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